o Normal server seemed not to distribute the SERVER_SIGNOFF properly
when its router disconnected.
+ o Router seemed not to force the channel mode change if the normal
+ server announced different modes than what the router had. For example
+ if router crashed and then reconnected the server had different
+ modes on the channel.
+
o When server quits and all clients of that server are removed from all
channels the channel keys are re-generated for all clients. This is
a bug and should be done only once per channel after all clients of